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08.10.2005

Chinese physicists are proposing to replace the tungsten filament in an incandescent light bulb with carbon nanotubes. It turned out that nanotubes glued into a beam shine brighter than tungsten at the same voltage, do not burn out for a long time and withstand more than 5000 switching on and off of the current.

According to the developers, new lamps, essentially repeating Edison's invention at a new level, may go on sale in five years.

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Latest news of science and technology, new electronics:

The existence of an entropy rule for quantum entanglement has been proven 09.05.2024

Quantum mechanics continues to amaze us with its mysterious phenomena and unexpected discoveries. Recently, Bartosz Regula from the RIKEN Center for Quantum Computing and Ludovico Lamy from the University of Amsterdam presented a new discovery that concerns quantum entanglement and its relation to entropy. Quantum entanglement plays an important role in modern quantum information science and technology. However, the complexity of its structure makes understanding and managing it challenging. Regulus and Lamy's discovery shows that quantum entanglement follows an entropy rule similar to that for classical systems. This discovery opens new perspectives in the field of quantum information science and technology, deepening our understanding of quantum entanglement and its connection to thermodynamics. The results of the study indicate the possibility of reversibility of entanglement transformations, which could greatly simplify their use in various quantum technologies. Opening a new rule ... >>

Mini air conditioner Sony Reon Pocket 5 09.05.2024

Summer is a time for relaxation and travel, but often the heat can turn this time into an unbearable torment. Meet a new product from Sony - the Reon Pocket 5 mini-air conditioner, which promises to make summer more comfortable for its users. Sony has introduced a unique device - the Reon Pocket 5 mini-conditioner, which provides body cooling on hot days. With it, users can enjoy coolness anytime, anywhere by simply wearing it around their neck. This mini air conditioner is equipped with automatic adjustment of operating modes, as well as temperature and humidity sensors. Thanks to innovative technologies, Reon Pocket 5 adjusts its operation depending on the user's activity and environmental conditions. Users can easily adjust the temperature using a dedicated mobile app connected via Bluetooth. Additionally, specially designed T-shirts and shorts are available for convenience, to which a mini air conditioner can be attached. The device can oh ... >>

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Random news from the Archive

Maxim MAX17222 Nanopower Device Series 01.06.2017

Maxim Integrated has announced a new series of miniature nanoPower devices. The MAX17220 - MAX17225 is a family of ultra-low current draw synchronous DC-DC boost converters.

Modern gadgets, wearable electronics, mobile devices and Internet of Things (IoT) devices are increasing their functionality at an accelerated pace. And at the same time, they are placing ever higher demands on power supply systems. The biggest challenge in the industry today is to maximize the life of a portable device from a single battery. The MAX17220-17225 nanoPower family is ideal for applications where battery life is critical.

The MAX17222 converter has already entered mass production from the entire nanoPower line. The main advantage of the microcircuit is that its own current consumption at idle is the lowest for such devices and is only 300nA. And in the off state, the current of its own consumption drops to 0,5nA. The output voltage can be adjusted with just one external resistor. The IC is guaranteed to start at 0,95V (typ.) and maintain the output voltage if the input voltage drops to 0,4V. 2,5 strapping elements, the Maxim Integrated solution can occupy only 95mm4 on the board.

Technical specifications:

Maximum input current limit - 0,5A (typ.);
Input voltage range 0,4-5,5V (after startup);
Guaranteed start at Uin > 0,95 V (typ.), 0,88 V (min.);
Output voltage setting range 1,8-5 V;
Efficiency > 91% (up to 95%) in a wide range of loads (at Uin > 2V);
Current consumption (IQ) 300 nA (at idle);
Insulated current (ISD) 0,1 nA (off);
The shutdown function completely isolates the load from the source;
The output voltage is set by one external resistor.

Typical applications:

Wearable electronics, gadgets;
Portable medical equipment;
Miniature and low-power sensors and sensors for the Internet of things (IoT);
Devices powered by batteries or accumulators;
Backup power supply circuits on ionistors.

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